4 years ago

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Mathematics

1 answer:

gizmo_the_mogwai [7]4 years ago

4 0

more information please.

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Solve the question below <br> -9 = x/8

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Answer:

-72

Step-by-step explanation:

x= -9×8

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How does the volume of a cylinder change when it’s diameter is doubled

zavuch27 [327]

Recallin that, the diameter is twice as long as the radius, namely the radius is half the diameter, so, if the diameter is doubled, the radius is also doubled.

$\bf \textit{volume of a cylinder}\\\\
V=\pi r^2 h\quad 
\begin{cases}
r=radius\\
h=height\\
-----\\
r=\stackrel{doubled}{2r}
\end{cases}\implies V=\pi (2r)^2 h
\\\\\\
V=\pi (2^2r^2)h\implies V=\pi 4r^2 h\implies V=4~(\pi r^2 h)$

notice, the new volume is 4 times (πr² h), namely 4 times the original.

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Rearrange the formula to solve for m<br> A= m (s+2)/t

Alisiya [41]

Answer:5

Step-by-step explanation:

Add 4 and 1

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Solve for v<br><br> pleaseee answer and explain <333

ahrayia [7]

Hi there! :)

Answer:

$\huge\boxed{v = -27}$

$\frac{v-3}{4} = \frac{9+2v}{6}$

Cross multiply:

$6 ( v - 3) = 4 ( 9 + 2v)$

Distribute:

$6v - 18 = 36 + 8v$

Isolate the "v" variable:

$6v - 18 + 18 = 36 + 18 + 8v$

$6v = 54+ 8v$

$6v - 8v = 54+ 8v - 8v$

$-2v = 54\\\\v = -27$

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